About Us

Grumpys Performance Center is a One-Stop Service and Dealership Alternative. We have been rebuilding quality engines for over 25 years. We pride ourselves on the continuous quality of our workmanship. We employ state-of-the-art equipment in our new 40,000 square-foot machine shop and warehouse located in Oregon. We are both ASA and Engine Pro certified. We are the #1 Diesel and Gas Engine Remanufacturing Machine Shop in the Northwest and we are now happy to be expanding our services NATION WIDE.

As you can see, we have a large warehouse and an actual location, not some apartment with a guy working on a laptop. We are a well established business that has been operating for over 25 years and we aren't slowing down any time soon!

Remember...PERFORMANCE is our middle name!

We eliminate the middle man and make our distributors available to you! GRUMPY'S PERFORMANCE CENTER